Make the governed RAG evidence path executable end to end

Separate local parsing from model indexing, bind review decisions to immutable manifests, persist vectors behind active profiles, and expose retrieval, chat, evaluation, and document workflows through the React workbench.

Constraint: Live Bailian authentication currently fails for all three configured capabilities

Rejected: Direct upload-to-embedding flow | bypasses local review and manifest binding

Confidence: high

Scope-risk: broad

Directive: Keep private-data deployment blocked until authentication, RBAC, and separate database roles land

Tested: make verify; fresh and replay Docker document smoke; worker recovery smoke; frozen synthetic evaluation; migration 0003-0004 roundtrip

Not-tested: Successful live Bailian calls, OCR, real multi-user authorization

data/samples/public/upload_demo.md

@@ -0,0 +1,11 @@
+# 海岳示范区萤石矿综合找矿标志
+
+> 本文档完全虚构，仅用于验证系统上传、解析、审核、向量化、检索和引用链路。
+
+样例协议版本为 `document-pipeline-smoke-v3`，不对应任何真实项目或地理位置。
+
+海岳示范区的萤石矿化受北北东向张性断裂控制。优先核查位置同时具有紫色萤石脉、硅化破碎带和氟元素水系沉积物异常；只出现单一低阻异常时，不能直接判定存在萤石矿体。
+
+## 工程验证建议
+
+地表槽探应垂直主要断裂布置，连续记录脉宽、围岩蚀变和采样区间。钻探部署前必须复核异常是否受到人工堆积物影响，并保留每条结论对应的来源锚点。